These are also (usually older) patients who decide they don't want to go on a ventilator because they feel their quality of life, if they were to survive, is so

These are also (usually older) patients who decide they don't want to go on a ventilator because they feel their quality of life, if they were to survive, is so low as to not matter. These are decisions made in concert with the 'huisarts' (General Practitioner).